CODEWITHSUNDEEP
ruby-on-railsapirestruby-on-rails-4
Pavel
Pavel

Reputation: 1974

REST API: multiple resources in one GET

I need to fetch several ids in one GET request like

http://localhost:3000/api/positions/ids

I've tried some ways to do this, but no one worked:

This returned only first object:

http://localhost:3000/api/positions/1,2

this

http://localhost:3000/api/positions?id=1,2

and that

http://localhost:3000/api/positions?id=1&id=2

returned all objects, but first and second.

How can I do it? Thanks!

Upvotes: 0

Views: 645

Answers (1)

Max Williams
Max Williams

Reputation: 32955

The syntax for arrays in parameters is id[]=1&id[]=2&id[]=3 but if you have large numbers of ids then this can become quite cumbersome and ugly. I would suggest that you use the parameter id for a single id and a separate parameter ids which takes a hyphen-seperated single string, eg

#get a single resource
/api/positions?id=123

#get a list of resources
/api/positions?ids=123-67-456-1-3-5

Now you can make your controller code something like this:

if params[:id]
  @foos = Foo.find_all_by_id(params[:id])
elsif params[:ids]
  @foos = Foo.find_all_by_id(params[:ids].split("-"))
end

Upvotes: 2

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